A chemist has 4 samples of artificial sweetener and . To identify these samples, he performed certain experiments and noted the following observations:
(1) and both form blue-violet colour with ninhydrin.
(2) Lassaigne extract of C gives positive test and negative test.
(3) Lassaigne extract of and gives positive sodium nitroprusside test.
Based on these observations which option is correct?
A-Aspartame, B-Saccharin, C- Sucralose, D-Alitame
Answer (D)
Explanation for correct option:
It has free amine group and hence reacts with ninhydrin to give a purple color known as
It has Sulphur, therefore, it will give a positive test with sodium nitroprusside.
It has chlorine and hence it forms a precipitate with in the extract of the sugar.
It has a free amine group and hence reacts with ninhydrin to give purple colour known as . Also, it has Sulphur, therefore, it will give a positive test with sodium nitroprusside.
Hence option (D) is correct option.